MERSEN FUSE 250V FA 0,63 A 6.32 MI6FA25V0,63

MERSEN FUSE 250V FA 0,63 A 6.32 MI6FA25V0,63

Mersen B084319 MI6FA25V0.63 high-speed semiconductor miniature fuse rated at 0.63 A and 250 V AC with a 6.3 x 32 mm ceramic cartridge and 200 kA breaking capacity.

SKU: B084319Alt SKU: MI6FA25V0,63MPN: B084319
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Why Choose the Mersen B084319 MI6FA25V0.63 Miniature Fuse?

The Mersen B084319 MI6FA25V0.63 is a compact 0.63 A high-speed semiconductor miniature fuse designed to protect sensitive electronic components and power semiconductor devices against damaging overcurrents and short circuits. Part of Mersen's MI6FA 250 V fuse series, it delivers ultra-fast fault interruption in a standard 6.3 × 32 mm ceramic cartridge format.

Its high-speed FA operating characteristic rapidly interrupts fault currents, helping minimise the thermal energy transferred to vulnerable semiconductor components. This makes it an excellent choice for converters, rectifiers, power supplies, industrial control equipment and automation systems where fast semiconductor protection is essential.

Rated at 0.63 A and 250 V AC, the Mersen B084319 provides an exceptional 200 kA breaking capacity. Its ceramic body and ferrule construction ensure reliable long-term performance in demanding industrial and electronic applications.

Key Advantages

  • High-speed semiconductor protection fuse.
  • 0.63 A rated current for sensitive electronic circuits.
  • 250 V AC rated voltage.
  • Compact 6.3 × 32 mm cartridge format.
  • 200 kA breaking capacity for dependable fault interruption.
  • Designed to minimise thermal damage to semiconductor devices.

Key Features

  • Mersen MI6FA semiconductor miniature fuse series.
  • 0.63 A rated current.
  • 250 V AC rated voltage.
  • High-speed FA operating characteristic.
  • Standard 6.3 × 32 mm ceramic cartridge.
  • Clip-mounted installation.
  • Ceramic body with metal ferrule terminals.
  • Designed specifically for semiconductor protection.

Reliable High-Speed Protection for Sensitive Electronics

Power semiconductor devices can be permanently damaged by even very short overcurrent events. The Mersen B084319 is engineered to interrupt fault currents extremely quickly, helping reduce the energy transferred to protected components and improving equipment reliability.

Its compact cartridge design makes it suitable for industrial control equipment, automation systems and electronic assemblies where dependable semiconductor protection and efficient use of panel space are important.

Typical Applications

  • Semiconductor device protection.
  • Industrial electronic power supplies.
  • Converters and rectifiers.
  • Automation and control systems.
  • Power electronic equipment.
  • OEM electronic assemblies.

Technical Specifications

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Current 0.63 A
Voltage 250 V
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 6.3x32 mm
Manufacturer Mersen
Series MI6FA 250 V
Catalogue number MI6FA25V0.63
Manufacturer part number B084319
Product type Semiconductor miniature fuse
Rated current 0.63 A
Rated voltage 250 V AC
Current type AC
Operating characteristic High speed FA
Fuse Size 6.3 × 32 mm
Pre-arcing I²t 0.12 A²s
Clearing I²t at rated voltage 0.24 A²s
Breaking capacity 200 kA
Mounting type Clip mounting
Connection type Ferrule
Body material Ceramic
Package quantity 50
UL recognised Yes
Compliance RoHS compliant

Frequently Asked Questions

What is the Mersen B084319 used for?

The Mersen B084319 is a high-speed semiconductor fuse designed to protect sensitive electronic components and power semiconductor devices against overcurrents and short circuits.

What is the current rating of the Mersen B084319?

The fuse has a rated current of 0.63 A.

What voltage is the Mersen B084319 rated for?

The fuse is rated for operation at up to 250 V AC.

What is the interrupting capacity of this fuse?

The Mersen B084319 provides a high 200 kA breaking capacity for dependable short-circuit protection.

What size is the Mersen B084319?

The fuse uses the standard 6.3 × 32 mm ceramic cartridge format and is intended for clip mounting.

Trusted by Electronics and Automation Professionals

Mersen semiconductor miniature fuses are trusted worldwide by equipment manufacturers, panel builders and maintenance engineers for dependable high-speed protection of sensitive electronic and power semiconductor equipment.